Table 1 Baseline clinical factors prior to TKA
CO2− group (47 knees) | CO2+ group (53 knees) | p value | |
|---|---|---|---|
Age (years) | 75.4 ± 7.8 | 74.6 ± 6.8 | n.s. |
Sex (male/female) (knees) | 42/5 | 48/5 | n.s. |
BMI (kg/m2) | 23.8 ± 3.1 | 22.3 ± 2.3 | n.s. |
FTA (°) | 183.2 ± 9.1 | 183.7 ± 6.1 | n.s. |
Extension (°) | − 6.8 ± 6.7 | − 7.2 ± 5.9 | n.s. |
Flexion (°) | 122.0 ± 14.7 | 126.4 ± 12.3 | n.s. |
KS knee score | 34.3 ± 15.3 | 32.1 ± 12.4 | n.s. |
KS function score | 41.9 ± 10.9 | 39.3 ± 10.5 | n.s. |